. >> i love michelle obama. to address the most significant event of this weekend, i love her bangs. >> reporter: hours earlier, at the white house, his second term officially began, as the president took the oath of office, in a private white house ceremony. >> so, help me, god. >> reporter: as michelle and daughter, malia, beamed, 11-year-old daughter, sasha, encouraged her dad. >> good job, dad. >> reporter: all weekend, workers have been preparing the capitol, the national mall, and the parade routes for the influx of spectators that descended upon washington to watch president obama be sworn in a second time. >> the theme of this year's inauguration is, our people, our future. >> reporter: while the president plans to look at the future, he'll pay tribute to the past. he'll be sworn in on two bibles. one used by abraham lincoln. and one, fittingly on this day, used by dr. martin luther king jr. the president will celebrate at two inaugural balls, versus the ten held four years ago. even if there's less fanf